New 4C Mailboxes from National Mailboxes (USPS Approved)

National Mailboxes’ new high security 4C mailboxes provide a simple, easy to use, pre-configured product line of mailboxes and parcel lockers. All meet and exceed every U.S Postal Service security requirement of USPS STD-4C regulation for 4C wall mounted mailboxes and 4C pedestal mailboxes. By offering different suite height options, specifically for the 4C wall mount horizontals, adding the right module to your 4C mailbox installation is quick, easy and secure. Please Note: New 4C Horizontal Wall Mount Mailboxes are now mandatory for ALL new construction and major renovation wall-mount installations according to the U.S Postal Service. This is a new postal regulation & requirement- (If for USPS Use/Access – aka US Mail Delivery)

  • USPS Approved and Postal Certified
  • Larger and Wider Tenant Door Size for More Mail Capacity
  • Higher 4C Security (Vandal Resistant and Theft Proof)
  • Front Loading (Rear Loading Also Available on Wall Mounted 4C Models)
  • FREE Shipping/Freight (Promotional This Month Only) Applies to Continental Lower 48 States

4C Horizontal Mailboxes (Wall Mount Style)


NEW Freestanding Depot Enclosure with 4C Horizontal Mailboxes

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With the larger standard tenant 4C door size as well as the availability of the larger oversized tenant 4C door size today more than enough compartment space and storage capacity for letters, large flat envelopes, priority mail envelopes, DVDs and even small packages is now offered and provided for daily U.S mail delivery.

With offering over 150 different individual 4C mailbox modules to select from, in addition to the ability to configure any base module, National Mailboxes has the most complete and extensive product line of USPS Approved 4C mailboxes and other 4C mailbox products as well as installation accessories on the U.S market today.  Offering a wide selection of both 4C horizontal wall mount style and 4C pedestal mount style at wholesale prices, National Mailboxes is your one stop shop and premier source for all your 4C mailbox product needs especially for new construction and major renovation mailbox installations.

Additional Product Design and Security Features of High Security 4C Mailboxes

  • Standard Tenant 4C Door Size: 3.25”H x 12”W x 15”D
  • Oversized Tenant 4C Door Size: 6.5”H x 12”W x 15”D
  • Standard pre-configured modules with integrated parcel lockers in 12 different heights
  • Master front loading door has interlocking, overlapping seams to prevent prying
  • Integrated outgoing mail collection compartment with weather protection hood and anti-fishing comb
  • One piece extruded hinge to prevent prying
  • Solid heavy duty aluminum frame protects adjacent customer and collection compartments
  • Includes multi-unit connector kit hardware supplied with every 4c mailbox module for easy, fast, proper and secure installation across large rough openings
  • Durable and heavy duty stainless steel latching hook cam on every tenant door with exclusive double latching cam on all oversized doors
  • Special and exclusive double latching parcel locking mechanism design for additional door security and added strength
  • Many 4C mailbox modules come with fully integrated parcel locker compartments for packages and include the signature key trapping lock system
  • All 4C mailbox units come with one outgoing mail compartment for outgoing mail
  • All doors include standard self-adhesive aluminum number plates for door identification. Optional custom engraved door numbering is available upon request
  • All 4C mailboxes include heavy duty tenant cam locks and keys. (Includes 3 keys per lock or per door)
  • Constructed and built with easy release handle to open master gate
  • Wide selection of protective, rugged and weather resistant powder coated color finishes. Color choices include:  Sandstone, postal grey, gold, dark bronze, antique bronze, silver speck, black and white
  • Solid thick aluminum integrated outgoing mail collection compartment prepared for USPS Postal Arrow Master Lock
  • Includes stainless steel hold open door catch on each side of master front door gate
  • Interlocking, overlapping seams to prevent prying and vandalism
  • Integrated Outgoing Mail Slot with weather protection hood extension
  • Includes product and manufacturer ID serial tag
  • Equipped with aluminum comb which prevents mail fishing in outgoing mail collection compartment
  • Heavy duty cam lock latches through frame for added security and protection

4C Horizontal Mailboxes (Wall Mount Style)

National Mailboxes new 4C series horizontal wall-mount mailboxes are now considered mandatory for ALL new construction and major renovation wall mount installations according to the U.S Postal Service which is a new postal regulation and postal requirement. (If for USPS use/access-aka U.S Mail Delivery) For not adhering to this regulation and requirement Local Postmaster Approval would then be required.

National Mailboxes offers a huge selection of the new 4C series horizontal mailboxes for both USPS use-access-(USPS Approved) as well as for private use-access applications. Both a full line of recessed in-wall mount style and surface wall mount style 4C mailbox models are available and offered at wholesale prices only at National Mailboxes. A wide range of door configurations are also available, ranging anywhere from one tenant door models all the way up to a 29-tenant door models serving the postal and mail delivery needs of millions of businesses and industries throughout North America. With our full product line of commercial 4C horizontal mailboxes each model comes with one outgoing mail compartment for outgoing mail as well as many models are equipped with parcel locker compartments for packages which is a new postal regulation and requirement.

With the highest 4C security offered in the mailbox industry there isn’t a higher security commercial mailbox out there in the U.S marketplace today then National Mailboxes full line of 4C horizontal mailboxes which are tamper resistant, tamper proof and theft resistant and include heavy duty sophisticated tenant locking systems for added security and mail protection.

Rated and approved for both indoor and outdoor use these high quality 4C horizontal mailboxes are weather resistant, corrosion resistant and rust proof offering additional decades of extended life. Manufactured and made out of heavy duty aluminum and stainless steel material these 4C horizontal mailboxes will stand up to the harshest outdoor weather conditions year after year.

Many features and special options are also included and offered with our full line of 4c horizontal mailboxes which includes our extensive selection of special protective powder coated finish color options including: Sandstone, Gold, Postal Grey, Silver Speck, Dark Bronze, Antique Bronze, Black and White. Tenant door identification systems are also included at no additional charge.

*** PLEASE NOTE: Parcel Locker compartments for packages are NOW required for every 10 to 15 tenant compartments or doors, which is also a new postal requirement and postal regulation (With having no parcel locker compartments Local Postmaster Approval would then be needed and required – Sometimes excludes Replacement of existing commercial  horizontal mailboxes)

4C Pedestal Mounted Mailboxes (Pedestal Style)

National Mailboxes offers a huge selection of the new 4C series pedestal mounted mailboxes for both USPS use-access-(USPS Approved) as well as for private use-access applications. A wide range of door configurations are available, ranging anywhere from a one tenant door model all the way up to a 29-tenant door model serving the postal and mail needs of millions of businesses and industries throughout North America. With our full product line of commercial 4c pedestal mounted mailboxes each model comes with one outgoing mail compartment for outgoing mail as well as many models are equipped with parcel locker compartments for packages which is a new postal regulation and requirement.

With the highest 4C security offered in the mailbox industry today there isn’t a higher security commercial pedestal mailbox out there in the U.S marketplace then National Mailboxes full line of 4C pedestal mounted mailboxes which are tamper resistant, tamper proof and theft resistant and include heavy duty sophisticated tenant locking systems for added security and mail protection.

Rated and approved for outdoor use National Mailboxes high quality 4C pedestal mounted mailboxes are weather resistant, corrosion resistant and rust proof offering additional decades of extended life. Manufactured and made out of heavy duty aluminum and stainless steel material these pedestal mounted 4C mailboxes will stand up to the harshest outdoor weather conditions year after year.

Many features and special options are also included and offered with our full line of 4C pedestal mounted mailboxes which includes our extensive selection of special protective powder coated finish color options including: Sandstone, Gold, Postal Grey, Silver Speck, Dark Bronze, Antique Bronze, Black and White. Tenant door identification systems are also included at no additional charge.

4C Mailbox FAQs:

*** PLEASE NOTE: Parcel Locker compartments for packages are NOW required for every 10 to 15 tenant compartments or doors, which is also a new postal requirement and postal regulation (With having no parcel locker compartments Local Postmaster Approval would then be needed and required-  Sometimes excludes Replacement of existing commercial pedestal mailboxes)